##Raspberry Pi usage in robotics ###RPI 3 for camera interface and robot management ###RPI 0 for sensor and actuator interface

##Issues ###Voltage levels Many sensors and actuators are using 5V logic and all RPI I/O uses 3.3V.

##Benefits ###RPI 3 has built-in WiFi connection The headless development is really nice. ###RPI 0 is very low cost The low price ($5) has created an inbalance between suply and demand. For this reason, RPI 0 is not available for purchases. The total cost with level shifters and other missing features is quite high.

##Alternatives The new ESP32 has built-in WiFi and quite high performance and very low price ($4). It is based on the experience that Espressif has learned with ESP8266. The ESP8266 has wide support for robotics type of applications.